RE: Server Architecture

IF you have to patch one instance and not apply that patch to all of
them, then you can create a new Oracle_Home at that time. But in my
experience if you have to patch one, you need to patch them all as they
all suffer from the same flaw.

Sounds like a SAP installation to me. Tell consultant to go fly a kite.
One set of binaries, 5 instances out of the same home. No options.

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